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CacheEntryMutator.java
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CacheEntryMutator.java
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.clustering.web.infinispan;
import java.util.EnumSet;
import java.util.Set;
import java.util.concurrent.atomic.AtomicBoolean;
import org.infinispan.Cache;
import org.infinispan.context.Flag;
import org.jboss.as.clustering.infinispan.invoker.CacheInvoker;
import org.jboss.as.clustering.infinispan.invoker.Mutator;
/**
* Mutates a given cache entry.
* @author Paul Ferraro
*/
public class CacheEntryMutator<K, V> implements Mutator {
private final Cache<K, V> cache;
private final CacheInvoker invoker;
private final K id;
private final V value;
private final Set<Flag> flags;
private final AtomicBoolean mutated = new AtomicBoolean(false);
public CacheEntryMutator(Cache<K, V> cache, CacheInvoker invoker, K id, V value, Flag... flags) {
this.cache = cache;
this.invoker = invoker;
this.id = id;
this.value = value;
this.flags = EnumSet.of(Flag.IGNORE_RETURN_VALUES, flags);
}
@Override
public void mutate() {
// We only ever have to perform a replace once within a batch
if (this.mutated.compareAndSet(false, true)) {
this.invoker.invoke(this.cache, new MutateOperation<>(this.id, this.value), this.flags.toArray(new Flag[this.flags.size()]));
}
}
}